Boring and turning mill.



No. 629,042. Patented July l3, 11899.

G. W. MDBETON.

BORING AND TURNING MILL. 1

(Application. filed Jan. 3, 1899.)

(No Model.)

2 Sheets-Sheet I.

IN VEN T011 Tu: uomus FEYERS co. mom-urns. wAsmuoTcN, o. c.

Patented July I8, 1899.

G. W. MORETON. BDBING AND TURNING MILL. (Application filed Jan. 3,1899.) (No Model.) 2 S hee ts-Sh'eet 2.

Hllll NVENTOR L /%/%W 4 M23 A/larney m: mums vznzns co. "HOTO-LlTKO-.WASHINEYON, o. c.

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THE BETTS MACHINE COMPANY, OF SAME PLACE.

BORING AND TURNING MILL.

SPECIFICATION forming part of Letters Patent No. 629,042, dated July 18,1899.

Application filed January 3, 1899. Serial No. 700,963. (No model.)

' Castle and State of Delaware, have invented certain new and usefulImprovements in Boring and Turning Mills; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to boring and turning mills; and it consists inthe novel construction and combination of the parts hereinafter fullydescribed and claimed.

In the drawings, Figure 1 is a side view of the machine. Fig. 2 is apartial front view of the machine, drawn to a larger scale. Fig. is aplan view of thebeveled' gearing. Fig. 41s a longitudinal sectionthrough the toolholder. Fig. 5 is a cross-section taken on the line a: min Fig. 4.

A is the bed of the mill, and B is the horizontally-arranged face-plate,which revolves at the top of the bed and supports the work.

C are the uprights, which have their topportions rigidly connected by adistance-piece or girth C. These uprights are slidable longitudinally onthe bed, and c are screws for sliding them, two similar screws beingused and revolved simultaneously by any approved driving mechanism.

D is the cross-rail for carrying the ordinary saddles and tool-slides.(Not shown.) This cross-rail is vertically slidable on the uprights C,and cl are screws for sliding it vertically. The screws cl are revolvedsimultaneously by any approved driving mechanism.

All the said parts may be of any approved construction, and theface-plate may be revolved by any approved means, such as shown in thePatent No. 569,344, dated October 13,

When a machine is constructed as set forth in the aforesaid patent,either of the ordinary tool-slides can be used for boring as long as theuprights are in their forward position and a tool-slide can be placedover thefaceplate sufficiently near its center. When, however, theuprights have been moved back, as shown in Fig. 1, to accommodate alarge piece of work,.the ordinary tool-slides cannot be used for eitherboring or for turning a horizontal surface, except to a very limitedextent, because they cannot be placed sufliciently near the center ofthe face-plate.

According to the present invention, E is a longitudinal rail provided atone end with a saddle or socket e for engaging with the crossrail D.

E is a stiffeningpiece on the upper side of the rail E, and e is avertical slide on the rear edge of the said stiffening-piece.

The rail E is arranged at about the middle part of the cross-rail D, andthe slide 6' engages with a guide F, carried by the girth C.

The guide F is of any approved construction which will permit the rail Eand its stiffening-piece to move up and down with the cross-rail D andwhich will permit the stiff ening-piece to prevent the rail E fromspring ing.

The longitudinal railE is similar to a crossrail of approvedconstruction, and it carries a saddle G, provided with a tool-slide G ofany approved construction.

The longitudinal rail E constitutes an extension which projects from thecross-rail D and which supports the tool over the faceplate. In orderthat the tool may be movable radially of the face-plate, the rail E hasparallel guide-surfaces upon which the saddle G is slidable.

H is a traverse-screw journaled longitudi- .nallv in the rail E andoperatively connected with the saddle. H is the feed-shaft for thetool-slide, journaled parallel to the screw H. The screw H and shaft Hmay be operated by hand in a similar manner to the ordinarytraverse-screw and feed-shaft of the crossrail.

The saddle G is provided with any approved means for operating thetool-slide, such as fully described in the Patent No. 569,344,hereinbefore mentioned. 9' is its hand-wheel, and g is its hand-nut forpressing together the members of its frictionclu'tch. The tool-slide Gismoved vertically by revolving the shaft H, and the saddle G, togetherwith the tool-slide G, is moved horizontally by revolving the shaft H".The traverse-screw H may also be revolved from the ordinarytraverse-screw d of the crossrail D by means of beveled toothed wheelsJ, as shown in Fig. 3. A rod j is slidable longitudinally in thecross-rail D and operates to place the toothed wheels in or out ofoperative connection with each otherin any approved manner ordinarilyused for the connection of driving-shafts used in the construction ofmachine-tools.

The traverse-screw d traverses the ordinary saddles (not shown) back andforth on the cross-rail D and forms a driving-shaft for revolving thetraverse-screw II by means of the beveled toothed wheels J. One of thesaid beveled toothed wheels is secured on the end of traverse-screw H,and the two beveled toothed wheels which gear with it are splined to theshaft or traverse-screw cl, upon which they have a limited slidingmotion sufficient only to permit them to he slid alternately into andout of gear by means of the rod j. The shaft H is operated in a similarmanner from the ordinary feed-shaft of the boringinill, as shown in thedrawings.

The tool-slide G is balanced by a weight K, which is attached to one endof a flexible connection 70, such as a chain or cord. The other end ofthe flexible connection 7c is attached to an arm is, projecting from thefree end portion of the longitudinal rail E.

M is a pulley carried by the tool-slide, and m m are two pulleyssupported from the saddle, one on each side of and above the pulley M.

N is a pulley carried by the lower part of the stiffening-piece E. 'n isa pulley carried by a bracket a, secured to the upper part of the saidstiffening-piece and arranged at an angle to the pulley N.

O is a pulley carried by a bracket 0, secured to one of the uprights O.The flexible connection passes over the pulleys m m, n, and O and underthe pulleys M and N, so that the tool-slide can be raised or lowered byitself or moved horizontally or vertically with its saddle and will bebalanced in all its positions.

P is the tool-holder, provided with a tapering shank P. This shank isrigidly secured in a socket in the tool-slide G by means of a key 19 orother approved fastening device. The shank P has a projectingscrew-threaded portion R, and the tool-holderhasa screwthreaded socketR, which is journaled on and engages with the screw-threaded portion R.The socket R has a slots on one side which splits or divides it, and sis a clamping-screw for drawing together the divided portions of thesocket, so that the tool-holder is clamped to its shank after beingrevolved to any desired position.

The tool-holder has a forked lower end if, and t is the tool-post,journaled in the said forked end at a right angle to the axis of theshank P. The tool-post has a slot to and a set-screw u for securing thetool-post and holding the cutting-tool w in the said slot against theWasher w on the inside of the forked end in the usual manner.

"What I claim is v 1. In aboring and turning mill, the combination, withlongitudinally-slidable uprights, a girth connecting their upper parts,and a cross-rail slidable vertically on the said uprights; of anextension projecting forwardly of the said cross-rail and provided witha stiffening-piece which is operatively connected with the said girth sothat the free end portion of the said extension is prevented fromspringing, and means for supporting a tool carried by the saidextension, substantially as set forth.

2. In a boring and turning mill, the combination, withlongitudinally-slidable uprights, a girth connecting their upper parts,and a cross-rail slidable vertically on the said uprights; of alongitudinal rail connected at one end to the said cross-rail andprovided with a stiffening-piece which is slidably connected with thesaid girth, substantially as set forth.

3. In a boring and turning mill, the combination, withlongitudinally-slidable uprights, a girth connecting their upper parts,and a cross-rail slidable vertically on the said uprights; ofalongitudinal rail connected atone end to the said cross-rail andprovided with a stiffening-piece and a vertical slide on its upper side,and a guide carried by the said girth and engaging with the said slide,substantially asset forth.

4. In a boring and turning mill, the combination, with uprights, a girthconnecting their upper parts, and a cross-rail slidable Vertically onthe said uprights; of a longitudinal rail projecting from the saidcross-rail and provided with a stiffening-piece which is slidablyconnected with the said girth, and toolholding mechanism carried by thesaid longitudinal rail, substantially as set forth.

5. In a boring and turning mill, the combination, with uprights, a girthconnecting their upper parts, a cross-rail slidable vertically on thesaid uprights, a longitudinal rail connected at one end to the saidcross-rail and provided with a stiffening-piece which is slidablyconnected with the said girth, and tool-holding mechanism carried by thesaid longitudinal rail; of a shaft journaled longitudinally of the saidlongitudinal rail and operatively connected with the said tool-holdingmechanism, a driving-shaft journaled longitudinally of the saidcross-rail, and driving mechanism connecting the two said shafts,substantially as set forth.

6. In a boring and turning mill, the combination, with uprights, a girthconnecting their upper parts, and a cross-rail slidable Vertically onthe said uprights of a longitudinal rail connected at one end to thesaid crossrail and provided with a stiffening-piece slidably connectedwith the girth, a saddle slidable along the said longitudinal rail, atoolslide slidable vertically in the said saddle, a connection andcounterbalancing the toolseries of guide-pulleys supported respectivelyslide, substantially as set forth.- I 10 from one of the uprights, thestifiening-piece, In testimony whereof I affix my signature the saddleand the tool-slide, a flexible conin presence of two witnesses.

nection connected at one end With the'free GEORGE \VILLIAM MORETON. endportion of the longitudinal rail and en- Witnesses: gaging with the saidpulleys, and a Weight KENT H. DILLON,

attached to the free end of the said flexible JOHN W. PEREGOY.

